Annoying Whine in Headphones - Prime Z370 A-II OC Hackintosh, please help!

Hello

I was wrapping up the install process on my Hackintosh, when I found that an annoying whine had started coming in my headphones after a certain step. I was following Dortania's Post-Install Guide for fixing Audio, and after making my layout permanent, and removing the boot flag, the whine started. If anyone knows what is up, please help, thank you!

System specs:
MB: ASUS Prime Z370 A-II
CPU: i5-8600k
GPU: iGPU
SSD: Samsung EVO 860
Wifi+BT: BCM94360CD + Adapter
EFI linked here

submitted by /u/alphadelta1803
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